Overview of McAfee Agent McAfee® Agent is the client-side component that provides secure communication between McAfee® ePolicy Orchestrator® (McAfee® ePO™) and managed products. The agent also serves as an updater for McAfee products. Systems can be managed by the McAfee ePO server only if they have an agent installed. While running silently in the background, the agent: Installs products and their upgrades on managed systems. Updates security content such as V3 DAT files associated with McAfee® Endpoint Security. Enforces policies and schedules tasks on managed systems. Gathers information and events from managed systems, and sends them to McAfee ePO. The term agent is used in these contexts in McAfee ePO: Agent — The basic operating mode for McAfee Agent, providing a communication channel to McAfee ePO and local services for managed products. SuperAgent — An agent that acts as an intermediary between McAfee ePO and other agents in the same network broadcast segment. The SuperAgent caches information received from McAfee ePO, the Master Repository, or a mirrored Distributed Repository, and distributes it to the agents in its network subnet. Configure a SuperAgent in every subnet when managing agents in larger networks. Key features of McAfee AgentMcAfee Agent architecture is single threaded and asynchronous based on services (messaging) architecture. In messaging-based architecture, the services communicate using a common language. This reduces the use of system resources, such as number of threads, number of handles, memory, and CPU. How McAfee Agent works Installing the agent on client systems is required for managing your security environment through McAfee ePO.